login
A184467
T(n,k)=Half the number of (n+1)X(k+1) binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks
12
3, 7, 7, 26, 35, 26, 91, 244, 244, 91, 334, 1693, 3090, 1693, 334, 1212, 12324, 42874, 42874, 12324, 1212, 4496, 89908, 616534, 1181303, 616534, 89908, 4496, 16809, 667600, 9016218, 33787978, 33787978, 9016218, 667600, 16809, 63442, 5002165
OFFSET
1,1
COMMENTS
Table starts
......3.........7...........26..............91.................334
......7........35..........244............1693...............12324
.....26.......244.........3090...........42874..............616534
.....91......1693........42874.........1181303............33787978
....334.....12324.......616534........33787978..........1925704384
...1212.....89908......9016218.......986306398........112210745828
...4496....667600....133687638.....29202473260.......6636592203096
..16809...5002165...2002023718....873679701315.....396770571117114
..63442..37777626..30215911640..26348265181700...23916105558978568
.240728.286971238.458822048550.799618906955872.1450886078150900726
LINKS
EXAMPLE
Some solutions for 4X3
..0..0..1....0..0..1....0..0..0....0..0..1....0..1..0....0..1..0....0..0..1
..0..1..0....1..1..1....1..1..1....0..0..1....0..0..1....1..1..0....1..1..0
..0..1..0....0..0..1....0..0..1....0..1..1....0..1..0....0..0..1....1..1..0
..1..1..0....1..0..0....0..0..1....0..1..1....1..1..1....1..0..1....0..0..0
...
...M..E.......E..P.......E..E.......M..E.......M..E.......P..E.......E..E...
...E..E.......E..P.......E..P.......M..P.......M..E.......E..E.......P..E...
...P..E.......M..M.......M..E.......E..P.......P..P.......M..E.......E..M...
CROSSREFS
Sequence in context: A341539 A322934 A077629 * A004794 A336719 A272981
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 15 2011
STATUS
approved